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zero padding the LUN using dd command in Linux

KavanaghMay 22 2013 — edited May 22 2013

Grid Infrstructure: 11.2.0.3
OS : Oracle Enterprise Linux 6.3

When we were installing RAC in solaris, we used to zero pad all LUNs meant for ASM . We used to do like below

dd if=/dev/zero of=/dev/rdsk/c0t600A0B8008A4CA005ACd0s0 bs=1024k count=2000

Now we are going to install RAC in Oracle Linux v6 . When I googled Linux related stuff for RAC , I didn't come across documents in which zero padding is done on LUNs meant for ASM Disk groups.

Question1. Is zero padding using dd necessary in Linux platform ?

Question2. If dd command has to be run in the LUN, shouldn't that be done before we create the partition table ?

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Locked on Jun 19 2013

Added on May 22 2013

#performance-availability, #rac-asm-clusterware-installation

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